Attachment for internal-combustion engines.



A. Cl HOPKINS. I ATTACHMiNT FOR INTERNAL COMBUSTION ENGINES. APPUCATIONFILED JUNE 2,1916} Patented Apr. 3, 1917'.

Elite: "v.1

creasing the efiiciency of the engine, and for preventing carbondeposits, and which may ARTHUR 0.. HOPKINS, or s'roux rams, scornDAKOTA, assienon or ONE-HALF 'ro a THERON R. BEMENT, or sroox FALLS,SOUTH DAKOTA.

ATTACHMENT FOR INTERNAL COMBUSTIGN ENGINE$ manage.

Specification of Letters Patent. 7

Application filedilune 2, 1916." Serial at. 101,317.

To all whom it may concern;

Be it known that I, ARTHUR a citizen of the United States, residing atSioux Falls, in the county of 'Minn'ehaha and Stateof South Dakota, haveinvented certain new and useful Improvements in f mounting upon thenipple'22, its opposite end being closed to provide a-head piece '13Attachments for Internal-Combustion Engines, of which the-following is aspecification. l

This invention relates to an attachment for internal combustion engines,and has forits principal object to provide a device-for conductingheated airfrom the exhaust manifold to the intake manifold for thepurpose of economizing liquid fuel and for in-.

be used effectively during hot orv cold weather.

Other objects relate to the provision. of

such a construction that theparts required will be few, may beconveniently manufactured, and will. be adapted to sustain the degree ofheat to which it may be subjected. 1

vibration and stresses incident toits use and will not be injured by,exposure to the high The invention includes the employment .of

parts having such form and arrangement that adjustments thereof may beconveniently andreadi'lymade for a complete control of the movements ofheated air, and a I control of suction in conjunction with the operationof the" carbureter; and also includes novel and useful means for housingand utilizing the heat from the egihaust manifold.

With the foregoing objects in view and others to be mentioned, theinvention pre sents a novel construction, combination and arrangement ofparts as described herein and claimed, and as illustrated in theaccompanying drawing, wherein,-

1 Figure 1 is a view, partly broken" and in section,fishowing thedeviceapplied to. the exhaust manifold and intake manifold. Fig. 2 is av'iew'in side elevation of a barrel member or tubular housing for thevalve and valve casing. Fig. 3 shows the ball valve. Fig. 4 is a sideview of the valve cas ng. Fig. 5 is an endv1ew of the valve casing.

.Fig. '6'is a'transverse section on line 6 6 of Fig. 4, Fig. 7 is a viewshowing the inner side of the heht r'eceiving receptacle for the exhaustmanifold. .Fig. 8 is a side view of parts, showing the device whenmounted,

(3. Hornnvs, .sca'le. Fig. 9 is a said View being broken and ona reducedof Fig. 7. Referring now to the drawing, I provide a housing member 11,consistingof a tube 12 interiorly threaded at its open end for a lar 15,said collar providing an intake port for and preferably bei'ng disposedsubstantially at right anglesto the axis of said tubular housing.

Patented 111M123, 1917. f

sectional .view on line 9 9 The valve'casing 14 is of cylindrical form,

and is provided on its outer side, near its open end, with an annulargroove 16, within said groom being-disposed'a packing ring at ofasbestos or similar material which will not be injured by action ofheat, the outer, imperfo'rate end of said valve casing being providedwith a threadedstem 17 which is [adapted to traverse the head 13-,centrally,

audio havea threaded connection therewith.

The wall of the valve casing is provided with apertures 18 having aninclination outwardly toward the iinpcrforate endof said valve casing,so that the heated air, while moving, will not be unduly obstructed, butwill be thoroughly mixed before entering the intake manifold A ballvalve is indicated at 19. It 'is adapted to have a seating in theconcaved of the coiled spring 21, saidspring being disposed in thetubular housing with it's respective ends abutting upon said valve andthe nipple 22,- said nipple having a threaded connection with one of thewalls of the intake manifold 23, comparatively remote from thecarbureter (not shown) and, preferably, bear the branches (1 of saidintake manifold, said nipple being provided at its discharging end'witha projecting part or ledge Z nearest to the incoming gas from thecarburetor, and operating as a deflector or shield, so that the'heatedair, from the tubular housing may move freely within theinta-kemanifold, and that its movement,

will not be unduly impeded.

' asindic ated by the arrows in the drawing, n

cept'acle consisting of an' attenuated plate bentsnbstantiallx'. toe-thesnrface. -conform mat-ion of the .exlialist manifold 25, ilpfon which t1s mounted... It, is PEOYldQd XVKh 'side wall's'd for the purpose ofconserving the'heat, and for beingnTaintained-in sp'a'ce'd relation 'oradjacent to. the-wallet the exhaust manifoldm r Y *Anysnitable"means maybe p'rovidedfor the bands 26. The side walls at, in conjunction" withthe plate "0 provide 'a housing Numeral etnidiea'es' heatlrecei \i'ngiespace; compartment or receptacle. for. tempo rairil receivingolf-containing the'heat prof *dnced, and ate are indicated recessesformed I exhaust manifold.-

' in the wall's'd and which open upon the edges of said walls, foradInitt-ing air to he heatet l 'by' exposlfir'e to the surface of the"Numeral '27 indicates a pipe of anyfsaib able length havingitsrespective ends inount'-= ed nponthe' collar 28 of thereceptacle 2t Ythe heated airmay be' condnot'ed from said reeeptaaeee ,a'ntr. 'pon' theeollar '15, by means of which I of tho construction de s'cribd," I

"an d itjliich has aliigh degree of heat ma be fplfotided for the;intake manifold; and by a'ctio'nfof suction maypasstl1e 'v'alvesubtheair. may not be of uniform temperature Lbie'co me' t liorolighly onaccount of theidiflerent kinds of carbu'ret'er's'used forinternal"combus'tion enand the'flhot and cold weather when used, it willbe, appreciatedthat the means for ad- .jns'tmntsfmentioned isanimportant fea titre, tor operation; B'y means of the threadedsteml7the v'alve'casing may be" rotated .feon'Yenient-ly, fora movement lon-'1 gitudinally of its tubular'housingifor com-.

pressing or retracting the spring, with the not necessary.

resn'lt that gliiglnay; pass the valve with slight resistance to theintake manifold, or the air may lye-wholly prevented from passingtheretln'ongh, and therefore the device,

which;ma have any desiredsize or proportion,' is adapt-ed forgeneral'nse, and may: be'applied to the exhanstand intake manifolds ofany engine of the class described.

in Contact with said exhanst-nianitold' thusproviding a space or'chamber between the rec'ep't: 1rle' and this lat ter,' means for theretention'ofsaid receptacle upon the latter, I

a tubular housingin"connnnnic'a'tion' with said intake-'n'ianifold, aspri'ng- 'n'essed i'alve, a alve-seat forming tubular member havingportsadaptedto provide for-the passage of heated air into said, tubularmember; said se'at-for'lnii' g' tubular member being positioned withinsaid tubular hou'sing'and slidable 'there'in, said \falve being held;upon its seat by its 'press'ure-applying spring, said ject'toth'eresistance of the spring 21 \Vhile' valve-seat formingtubular memberhaving an annular groove 'cojntaln'ing a pa'eklng forfittingtheValve-seat tubnlarjrnerrlber fluid tight within s ziid'honsingi meansfor adj usting'the position of said 'valve-seat forming tubnlarinemberadapted to providefor controlling the tension of'saidspringnnd a v 4 gtubular lneliiber effecting" connection bogins, the dryer moist climatesWhere used, tween said receptacle and said tubular hous- In testimonywhereof, I have afiixed my signature in presence of two Witnesses.

ARTHUR-.0. HOPKINS.

V lVitnesses: g HinAM; A. STURGES, ARTH I T H STURGEs."

